Instanton Effects in Supergravity Theories
Soo-Jong Rey, T.R. Taylor
TL;DR
This paper investigates instanton effects in supergravity theories, showing they preserve supersymmetry, break chiral symmetry, and lead to suppressed non-perturbative corrections, similar to globally supersymmetric models.
Contribution
It provides a detailed analysis of instanton solutions, fermionic zero modes, and correlation functions within supergravity with field-dependent gauge functions, highlighting their non-perturbative effects.
Findings
Instantons preserve supersymmetry in supergravity.
Instantons break chiral U(1) symmetry.
Non-perturbative corrections are suppressed at large distances.
Abstract
Non-perturbative effects of instanton-like solutions are studied within the framework of supergravity theories with field-dependent gauge functions. Fermionic zero modes are constructed and some typical correlation functions are evaluated. The effects of instantons are very similar to those in globally supersymmetric theories: they preserve supersymmetry while breaking a chiral symmetry. Non-perturbative amplitudes receive corrections which are suppressed at large distances.
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